RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4518 locations in the last 30 days (4684 reports) · Last sighting 18 hours ago

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

32080fewer → more

Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/13/2026905 E 100TH PLPullman8Completed2 daysPhone CallCity 311
8/19/20259059 S ELLIS AVEBurnside8Completed7 daysAlderman's OfficeCity 311
8/10/20259056 S MORGAN STWashington Heights21Completed12 daysPhone CallCity 311
6/30/2026904 N CALIFORNIA AVEWest Town36Completed7 daysInternetCity 311
10/24/2025904 E 83RD STChatham8Completed3 daysPhone CallCity 311
5/13/20269047 S BISHOP STWashington Heights21Completed7 daysInternetCity 311
8/17/20269046 S BISHOP STWashington Heights21Completed11 daysInternetCity 311
3/27/20269045 S RACINE AVEWashington Heights21Completed3 daysInternetCity 311
9/29/20259043 S UNION AVEAuburn Gresham21Completed4 daysPhone CallCity 311
9/8/20269043 S ADA STWashington Heights21Completed10 daysPhone CallCity 311
6/4/20269040 S GREENWOOD AVEBurnside8Completed4 daysPhone CallCity 311
8/26/2025903 W 19TH STLower West Side25Completed13 daysAlderman's OfficeCity 311
9/4/2026903 S OAKLEY BLVDNear West Side28Completed5 daysInternetCity 311
3/1/2026903 N HERMITAGE AVEWest Town1Completed2 daysPhone CallCity 311
12/13/2025903 N HERMITAGE AVEWest Town1Completed2 daysMobile DeviceCity 311
4/21/2026903 N HERMITAGE AVEWest Town1Completed1 dayInternetCity 311
7/13/2026903 N HERMITAGE AVEWest Town1Completed8 daysMobile DeviceCity 311
12/15/2025903 N HERMITAGEWest Town1Completed1 daySalesforce Mobile AppCity 311
5/18/2026903 N HARDING AVEHumboldt Park37Completed4 daysPhone CallCity 311
8/15/20259039 S DOBSON AVEBurnside8Completed3 daysPhone CallCity 311
6/25/20269039 S DOBSON AVEBurnside8Completed1 dayPhone CallCity 311
5/6/20269039 S DOBSON AVEBurnside8Completed2 daysPhone CallCity 311
6/24/20269039 S BRANDON AVESouth Chicago10Completed2 daysMobile DeviceCity 311
6/3/20269037 S CREGIER AVECalumet Heights8Completed1 dayPhone CallCity 311
9/17/20269036 S JUSTINE STWashington Heights21Completed1 dayPhone CallCity 311
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